GWD29-9

meckychen

Q9:

A total of 100 customers purchased books at a certain bookstore last week.  If these customers purchased a total of 200 books, how many of the customers purchased only 1 book each?

(1)   None of the customers purchased more than 3 books.

(2)   20 of the customers purchased only 2 books each.

Ans: C

Why,

thank you.